IKEA wants to change the way you light your home, one bulb at a time. The Swedish retailer will become the first U.S. home furnishings chain to sell only LED (light emitting diode) bulbs and lamps -- a bold push for the adoption of this energy-efficient light source in the U.S market.

If you want to give your loved ones environmental peace and joy, you might want to hold off on buying them the latest hot gadgets as gifts. E-waste is a dirty problem that lingers far beyond the time when Christmas present becomes Christmas past.

Chipkos hopes its latest pair of fashionable flip-flops could help save the Costa Rican rainforests. One purchase will protect 100,000 square feet of the eco-rich land. But it's had no takers so far. Did we mention the sandals cost $18,000?

SunPower is on a roll: It just launch the most efficient mass-produced solar cell in the world and announced it will soon start construction of the biggest solar roof in North America. Is the market already too enthusiastic about the solar energy major, or is this a good time to buy?

SunPower boasts of being able to manufacture the most efficient large-scale solar modules in the industry, and shipments of its residential and commercial components have been growing rapidly. Trefis predicts they'll keep growing, especially if federal policy shifts further in favor of solar.

The Empire State Building is perhaps best remembered as the site of King Kong's last stand, but in real life, the monkey on the building's back wasn't a giant gorilla -- it was a giant electricity bill. But that was before one of the most remarkable green renovations ever undertaken.

In a somewhat surprising report, The U.N. Environment Programme says one of the most promising green industries -- at least when it comes to creating economic growth, reducing poverty, fueling job creation and addressing major environmental challenges -- turns out to be tourism.

With oil prices soaring on Mideast turmoil, alternative energy sources such as wind are again drawing the public's attention. But wind technology hasn't been standing still: Its power output worldwide jumped by 22% last year. However, it's still nowhere near replacing oil.